update github actions

Author: topi314

.github/workflows/publish.yml

@@ -23,7 +23,7 @@ jobs:
           cache: gradle
 
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v2
+        uses: gradle/actions/setup-gradle@v4
 
       - name: Build and Publish
         run: ./gradlew build publish --no-daemon -PMAVEN_USERNAME=$MAVEN_USERNAME -PMAVEN_PASSWORD=$MAVEN_PASSWORD